You can set the Wait Until M-F at 8am to do this.
You might also consider setting up a batch campaign to begin at 8am each weekday, although I think the wait until will work better for you.
There are also new options coming out on March 8 to delay a step a specific number of days.
How exactly is the wait step configured?
Must end on?
We are sending out offers for sales calls but don't want the user to get one at 2am.